When used by a Ghost-type, the user sacrifices half of its max HP to sap the target by 1/4 of its max HP per turn. When used by anything else, the user's Speed is decreased by 1 stage and its Attack and Defense are increased by 1 stage.

When used by a Ghost-type, the user sacrifices half of its max HP to sap the target by 1/4 of its max HP per turn. When used by anything else, the user's Speed is decreased by 1 stage and its Attack and Defense are increased by 1 stage.

Damages opponents every time they switch in until they use Rapid Spin. Saps a fraction of max HP determined by the effectiveness of Rock-type attacks against the opponent's type: 1/32 for 1/4x, 1/16 for 1/2x, 1/8 for 1x, 1/4 for 2x and 1/2 for 4x. For example, Stealth Rock saps 50% of an Ice/Flying Pokemon's max HP when it switches in.

When used by a Ghost-type, the user sacrifices half of its max HP to sap the target by 1/4 of its max HP per turn. When used by anything else, the user's Speed is decreased by 1 stage and its Attack and Defense are increased by 1 stage.

Damages opponents every time they switch in until they use Rapid Spin. Saps a fraction of max HP determined by the effectiveness of Rock-type attacks against the opponent's type: 1/32 for 1/4x, 1/16 for 1/2x, 1/8 for 1x, 1/4 for 2x and 1/2 for 4x. For example, Stealth Rock saps 50% of an Ice/Flying Pokemon's max HP when it switches in.

When used by a Ghost-type, the user sacrifices half of its max HP to sap the target by 1/4 of its max HP per turn. When used by anything else, the user's Speed is decreased by 1 stage and its Attack and Defense are increased by 1 stage.

Damages opponents every time they switch in until they use Rapid Spin. Saps a fraction of max HP determined by the effectiveness of Rock-type attacks against the opponent's type: 1/32 for 1/4x, 1/16 for 1/2x, 1/8 for 1x, 1/4 for 2x and 1/2 for 4x. For example, Stealth Rock saps 50% of an Ice/Flying Pokemon's max HP when it switches in.